EP0096094B1 - Semelle pour chaussure de ski de fond - Google Patents
Semelle pour chaussure de ski de fond Download PDFInfo
- Publication number
- EP0096094B1 EP0096094B1 EP82105117A EP82105117A EP0096094B1 EP 0096094 B1 EP0096094 B1 EP 0096094B1 EP 82105117 A EP82105117 A EP 82105117A EP 82105117 A EP82105117 A EP 82105117A EP 0096094 B1 EP0096094 B1 EP 0096094B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sole
- ski
- groove
- plate member
- toe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/04—Ski or like boots
- A43B5/0411—Ski or like boots for cross-country
- A43B5/0413—Adaptations for soles or accessories associated with soles for cross-country bindings
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/04—Ski or like boots
- A43B5/0411—Ski or like boots for cross-country
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C9/00—Ski bindings
- A63C9/20—Non-self-releasing bindings with special sole edge holders instead of toe-straps
Definitions
- the invention concerns an outer sole for or on a cross-country ski shoe comprising a sole plate member having a toe section, a forefoot section, an arch section, a heel section, an upper surface for attachment to a shoe upper and lower surface adapted to contact a ski.
- a corresponding sole is known from the International Application WO 80/00540.
- the contact between the lower surface of the sole and the ski is accomplished by a pair of slots in the toe and forefoot section which corresponds to ribs on a plate which is mounted to the top side of the ski.
- This known kind of a contact needs a rather thick sole at least in the toe and forefoot section in order to accommodate the ribs associated to the ski. This comprises the flexibility of the sole and the feeling of the user during running. Further, the distance of the foot from the upper surface of the ski is rather great so that there is a certain danger of tilting the ski when a slide inducing force is applied by the user.
- the lower surface has a pair of transversely spaced, longitudinally extending the side walls defining between them a longitudinally extending groove, that the groove has a width sufficient for receiving the ski so that the side walls of the groove extend about the side walls of the ski and that the groove extends through at least the forefoot section, the arch section and the heel section.
- a sole in accordance with the present invention is constructed with the understanding that satisfactory lateral support can be optimized if the engagement between the sole and the ski is always present, i.e., present even during skiing motion when the shoe is bent up from the ski.
- a sole for cross-country shoe in accordance with the invention is generally characterized in that substantially the entire sole from the toe to the heel is provided with a continuous recess or "groove", dimensioned for graspong around opposite side edges of the ski.
- the groove extends from immediately behind the toe extension to the heel edge. In another embodiment the groove extends into the toe extension.
- the groove extend continuously from the toe portion of the sole to the heel edge, whether or not the groove extends into the toe extension, the need of a known heel plate with the V-shaped projection is eliminated.
- the coupling of the shoe to the ski is thus simplified, and fewer elements have to be attached to the ski. Since fewer elements have to be attached to the ski, the chance of weakening the ski because of the attachment of elements to the ski is reduced.
- This use of the continuous longitudinal groove also has the advantage that a continuous lateral alignment and correction mechanism, i.e., the edges of the side walls of the grooves extending around and engaging the sides of the ski, tend to urge the shoe into lateral alignment with the ski during most of the up and down motion of the foot.
- shoe soles in accordance with the invention namely a first embodiment adapted for standard toe bindings wherein the groove does not extend into the toe extension, and one embodiment adapted for a binding most suitable for the invention wherein the groove extends into the toe extension.
- the recess or groove in the sole should preferably be deep, and for instance comprise about 10% of the width of the ski, i.e., about 5 mm deep for a normal cross-country ski.
- the sides of the recess should extend either normal to the surface of the sole, or at a small tilt outwards, such that a centering effect occurs when the shoe is set down onto the ski. Since the ski shoe will generally always be to some extent in engagement with the ski, it is not necessary to use a separate heel fitting.
- the sole should preferably be of the "snabel type," i.e., having a forwardly directed extension with the usual apertures for pins positioned on the binding plate. Alternatively, other locking means can be used.
- a further new feature with a development of the shoe sole in accordance with the invention is that the longitudinal center portion of the sole, i.e. the arch area, is provided with a lateral widening or extension, particularly on the inside of the foot, to an extent such that the groove or recess in the sole can be extended continuously backwards through this center (arch) portion to the heel portion of the sole. Continuous engagement between the sole and the ski at both sides of the sole is thus obtained. Furthermore, an evenly distributed, full support between the shoe sole and the ski occurs.
- This lateral extension particularly on the medial side provides additional lateral support to aid in edging the skis, thus enhancing the control ability of the skis. This is in contrast to typical cross-country ski shoe soles where the center portion is rather narrow, resulting in a center zone of the sole that has no or very little support against the ski.
- a further feature in accordance with the development of the invention relating to the late- rial expansion of the sole, is that the shoe above the lateral sole expansion can be built up or supplied with a special build up.
- a sole comprising a sole plate member in accordance with the present invention is designated generally as 2.
- Sole plate member 2 is preferably molded from a plastic or rubber- or plastic-like material. Sole plate member 2 can be divided into a number of sections, related approximately to the portions of the foot located above the respective sections. For example, a toe section is located between lines L 1 and L 2 ; a forefoot section is located between lines L 2 and L 3 ; an arch section is located by line L 3 and L 4 ; a heel section is located rearward of line L 4 ; and a toe extension is located foreward of line L 1 .
- Sole plate member 2 has a longitudinally extending rectilinear recess or "groove” 4 on its bottom or underside defined between a pair of opposing, transversely spaced edges or side walls 6 and 8.
- Side walls 6 and 8 extend normal to or substantially normal to, i.e. at a slight outward angle to, the plane of sole plate member 2 or the bottom face of groove 4.
- the bottom face of groove 4 is designed to rest against the top side of the ski.
- the width of the groove corresponds to the width "B" of a ski which is to be used with the sole.
- Side walls 6, 8 thus extending about the side walls of the ski.
- sole plate member 2 is formed of two pieces 3 and 5, which are secured to one another.
- Piece 3 is preferably formed of thermoplastic which is flexible yet sufficiently rigid to provide the required degree of torsional stability.
- Piece 3 is attached to the shoe upper.
- Piece 5 is preferably formed of thermoplastic or rubber like material having the skid resistant property of rubber.
- Piece 5 has groove 4 formed longitudinally in it.
- Figure 2 illustrates the depth profile of groove 4 as "H". This depth can, if desired, vary somewhat in correspondence with the contour of lateral portions 10 and 12 of sole plate member 2, but should in average have a depth of about 4-7 mm. The depth of the groove can if desired increase towards the heel portion as shown by dot-dash lines 9 in Figure 2.
- the front toe portion sole plate member 2 and groove 4 can be varied in accordance with the type of toe binding which will be used.
- Binding 11 includes a binding plate 13, clamp 28 and clamp retainer 29.
- Binding plate 13 includes a pair of opposed upwardly extending side walls 15 and pins 31.
- Clamp 28 is pivotably carried by the side walls 15, and clamp retainer 29 is spring biased into a locking position onto clamp 28.
- a toe extension 17 of sole plate member 2 has a plurality of apertures 33 for alignment with pins 31.
- To attach sole plate member 2 to ski 30, clamp retainer 29 is moved to release clamp and clamp 28 is pivoted upward.
- Toe extension 17 is slipped between side walls 15 and pins 31 pass into apertures 33. Thereafter clamp 28 is pivoted downward on top of toe extension 17 and secured in position by claim retainer 29.
- Sole plate member 2 illustrated in Figures 1-4, is designed to be used with the conventional toe binding 11 which includes binding plate 13 having side walls 15 of the type "Rottefella". Front portions 10a and 10b of the lateral portions 10 and 12 therefore should be thinned off in the front, such that the thickness of the ridges 6 and 8 in this area approaches zero adjacent the junction point with the protruding parts of binding plate 13. See Figure 2. Otherwise, sole plate member 2 in this area would be pressed upwards, so that its bottom face would not come into contact with binding plate 13. In some instances, however, groove 4 may extend forward to engage and straddle the side faces of the ski in the vicinity of side walls 15, since these walls normally extend somewhat backwards relative to binding plate 13.
- opposing side walls 6 and 8, defining groove 4 extend from a point slightly rearward of the forwardmost end of the shoe upper continuously to the rear edge of the heel of sole plate member 2.
- Triangular shaped cutouts 19 are preferably formed in side walls 6 and 8 in the forefoot area to add flexibility to sole plate member 2 during walking and skiing. Cutouts 19 also improve traction during walking.
- the medial intermedu- ate portion (in the arch area) of sole plate member 2 is provided with a laterally extended portion 42.
- Extended portion 42 allows groove 4 to be continuously extended backwards all the way to the heel section of sole plate member 2. Without this lateral extension the sole plate member 2 might typically follow dashed lines 44, thus interrupting groove 4.
- Medial extension 42 also provides additional medial support for the foot.
- An extension 43 may also be provided on the lateral side of sole plate member 2.
- Figures 5 and 6 illustrate another embodiment of sole plate member 2' in accordance with the present invention. Elements of sole plate member 2' similar to elements of sole plate member 2 will be indicated by like primed numbers. Sole plate member 2' can be described briefly since it is the same as sole plate member 2 except for the extent of groove 4'. In sole plate member 2', side walls or edges 6', 8' extend to the forwardmost end of sole plate member 2', i.e., into toe extension 17'. Toe bindings in accordance with the present invention, which are adapted to accommodate sole plate member 2' are shown in Figures 8-11.
- FIGS 6a and 7 Other optional features of a sole in accordance with the present invention are shown in Figures 6a and 7.
- toe extension 17' is shown with a recess 16 extending below a traverse edge 18.
- the depth of recess 16 can be made in varying thickness and the longitudinal location of transverse edge 18 can be varied to adapt sole plate member 2' to various bindings having binding plates of various thicknesses.
- FIG. 7 schematically shows a ski boot or shoe 46 which is provided with a special intermediate buildup or filler 48 along the medial side.
- Filler 48 fills out the space between the lateral extended portion 42 and the outside of the shoe, and serves as an external extra support for the foot and for the portion of the shoe resting against the sole and the ski. It will be understood that in place of an external intermediate build up, the ski boot itself can be made with a lateral extension and provided with an internal build up or support.
- FIGS 8 and 9 illustrate an embodiment of a new toe binding design in accordance with the invention, mounted on a ski in a clamped position on a cross-country ski shoe provided with a sole plate member 2' in accordance with the invention.
- This binding 50 is especially developed to be used in connection with the sole plate member 2' embodiment having a longitudinal groove extending all the way to the front or tip of the sole, i.e. into toe extension 17'.
- Binding 50 comprises a binding plate 60, a bolt 70, a clamp 72, and a clamp retainer, i.e., a wing nut 76.
- Plate 60 is attached to the top side of the ski 62 by means of screws 63 and has a transverse upright flange 64 across its front end.
- Plate 60 includes three conventional marks or pins 66, of standard type, "nordic norm", for holding a shoe sole 68, provided with complementary apertures.
- Upright bolt 70 is attached to plate 60 and bolt 70 passes through a hole in clamp 72.
- the front edge of clamp 72 has a downwardly pointing flange 74 which rests against the inside of the flange 64 on the plate 60.
- Wing nut 76 is threaded onto bolt 70.
- a helical spring 78 is placed on bolt 70 between clamp 72 and plate 60.
- a stopper 80 is formed on the uppermost end of bolt 70.
- Clamp 72 is pressed directly above the pins 66 and completely locks the sole. Downwardly pointing side edges 82 and 84 of sole 68 rest against the opposed side edges of plate member 60 and the ski 62.
- Plate member 60 is preferably designed with a width which substantially corresponds to the width of the ski.
- binding specially adapted to the invention differs from binding 50 shown in Figures 8 and 9 substantially in that threaded wing nut 76 on bolt 70 is replaced by a pivot arm 90 journalled on a transversely extending shaft 92 mounted on the top of bolt 70.
- Pivot arm 90 is provided with a substantially circular head 94 which is eccentrically mounted on the pivot shaft 92.
- the binding is shown in position for use, i.e., in locked position, wherein the pivot arm is pivoted forwardly down to rest against the ski 62.
- Eccentric head 94 is configured such that the biasing point against clamp 72 in this locked position is behind the axis through bolt 70, in other words, it is locked.
- Bolt 70 is attached to plate 60 on the ski, suitably with a threaded bushing 96.
- the clamping effect from the pivot arm 90 may be adjusted in a simple fashion by turning the pivot arm to rotate bolt 70 and thus move bolt 70 upwards or downwards with respect to bushing 96. If the pivot arm, for example, is turned one full turn to the right, one can obtain an increased clamping effect from clamp 72.
- Clamp 72 has a groove or a curvature 98 in the vicinity above pins 66. A transverse line contact with the shoe sole which further contributes to effective clamping is thus obtained. Curvature 98 also allows the shoe sole a better opportunity to attain a curved position during the skiing.
- the binding shown in Figure 10 similar to the binding shown in Figures 8 and 9, was especially developed for use in connection with a sole having a longitudinal groove and downwardly pointing portions 82, 24, along opposed side edges. These bindings may, however, without alterations also be used in connection with standard soles.
- the clamps shown in Figures 8-10 are usually made somewhat narrower than the front of the sole, such as shown in Figure 9. However, the clamp can be made with substantially the same width and shape as the front portion of the sole, and further can have downwardly pointing side walls at opposed sides which straddle against the opposite side edges of the sole.
- Figure 11 illustrates a binding 58 with an eccentric pivot arm 90 similar to the one shown in Figure 10.
- clamp 72 is pivotally attached to the plate 60 by means of a transverse shaft member 100. Furthermore, clamp 72 has the same width and form as the tip portion of the sole and at its-opposite side edges is provided with downwardly pointing flanges or walls 102, 104, which straddle the tip (toe extension) of the sole.
- This embodiment of the binding can be used in connection with the soles in accordance with the invention, as well as with various forms of standard soles.
- the downwardly pointing side walls 102, 104 will then serve the same or a similar function as the usual upwardly pointing side walls used on standard bindings.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Claims (7)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP82105117A EP0096094B1 (fr) | 1982-06-11 | 1982-06-11 | Semelle pour chaussure de ski de fond |
AT82105117T ATE24992T1 (de) | 1982-06-11 | 1982-06-11 | Sohle fuer skilanglaufschuh. |
DE8282105117T DE3275156D1 (en) | 1982-06-11 | 1982-06-11 | Sole for cross-country ski shoe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP82105117A EP0096094B1 (fr) | 1982-06-11 | 1982-06-11 | Semelle pour chaussure de ski de fond |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0096094A1 EP0096094A1 (fr) | 1983-12-21 |
EP0096094B1 true EP0096094B1 (fr) | 1987-01-21 |
Family
ID=8189083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82105117A Expired EP0096094B1 (fr) | 1982-06-11 | 1982-06-11 | Semelle pour chaussure de ski de fond |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0096094B1 (fr) |
AT (1) | ATE24992T1 (fr) |
DE (1) | DE3275156D1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4674202A (en) * | 1983-12-16 | 1987-06-23 | Warrington Inc. | Cross-country ski boot |
SU1377128A1 (ru) * | 1985-04-24 | 1988-02-28 | Ленинградский Политехнический Институт Им.М.И.Калинина | Лыжна принадлежность |
JPS63501128A (ja) * | 1985-04-26 | 1988-04-28 | レニングラドスキ ポリテクニチエスキ インスチテユ−ト イメニ エム アイ カリニナ | スキ−締め具 |
FR2652754B1 (fr) * | 1989-10-11 | 1993-05-07 | Salomon Sa | Dispositif de guidage lateral d'une chaussure de ski de fond. |
FR2659024B1 (fr) * | 1990-03-02 | 1992-05-15 | Salomon Sa | Dispositif de rappel d'une chaussure de ski sur un ski. |
US5625966A (en) * | 1993-03-17 | 1997-05-06 | Nordica S.P.A. | Highly flexible item of sports footwear |
IT1272104B (it) * | 1993-03-17 | 1997-06-11 | Asolo Spa | Calzatura sportiva ad elevata flessibilita' |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH228420A (de) * | 1943-03-02 | 1943-08-31 | Schuhfabrik Henke & Co Aktieng | Ski-Schuh. |
US3842518A (en) * | 1973-09-20 | 1974-10-22 | Famolare Inc | Cross-country ski boot |
US3907319A (en) * | 1973-11-23 | 1975-09-23 | Dovre Ski Binding Inc | Toepiece for cross-country skiing |
US4082312A (en) * | 1976-09-21 | 1978-04-04 | Johnson Lennart B | Cross country ski binding |
US4165888A (en) * | 1977-11-07 | 1979-08-28 | Bernhardson Gary E | Cross country ski binding |
CH619147A5 (fr) * | 1978-09-05 | 1980-09-15 | Bata Schuhe Ag |
-
1982
- 1982-06-11 DE DE8282105117T patent/DE3275156D1/de not_active Expired
- 1982-06-11 EP EP82105117A patent/EP0096094B1/fr not_active Expired
- 1982-06-11 AT AT82105117T patent/ATE24992T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE24992T1 (de) | 1987-02-15 |
EP0096094A1 (fr) | 1983-12-21 |
DE3275156D1 (en) | 1987-02-26 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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